Essays on Inner Ear

Discussion

It is true that the patient might be suffering from Swimmer’s ear. According to Hui (2013), Swimmer’s ear is commonly experienced in children and adults. It is clear that swimmer’s ear also causes inflammation, fullness in the inner ear and possible hearing loss (Hui, 2013).It is also true that most of the diagnosis is done by the observation of the outer ear such as the pinna. In some cases, the inflammation of the outer ear might be caused by complications in the fluids found in the inner ear. An otoscope could, therefore, be used to ...

A. The human cerebral cortex is divided into three main areas: sensory, motor and associated areas (Association Cortex, 2016). Sensory areas belong to the peripheral nervous system. They extend from the spinal cord to the receptor cells located in all parts of the body. The primary function of sensory area to carry impulses from the receptor cells to the brain for interpretation. These impulses can be those of sensations like touch, pain, smell, taste and sight. The motor area or the primary motor cortex is located in the interior part of the brain at the central sulcus. Its pyramidal ...

A. An anticholinergic is a drug used in the treatment of diseases such as asthma, muscular spasms, insomnia and gastrointestinal cramps (Healthline, 2016). The drug is also used with anesthetics as it inhibits the action of parasympathetic nerve impulses by preventing acetylcholine reaching the receptor cells of nerve impulses. This may lead to memory loss, confusion, drowsiness and even sedation. These effects are more pronounced in old-aged people. Loss of muscular strength and fainting is a symptom which could be seen in the patient. Use of anticholinergic drugs is not recommended for patients with conditions like glaucoma, hyperthyroidism, heart ...

The Hearing Process and Presbycusis

Hearing is the second most indispensable process, in conjunction to the special senses of the humans. The process is particularly vital, and it comprises of the auditory mechanism, sensation, perception, and interpretation of the information in the brain. The anatomy of the hearing process encompasses the external ear; auricle, meatus and ear drum, the middle ear, which consists of the ossicles, oval window, round window, and the opening into the Eustachian tube, and inner ear, which entails, cochlea and vestibular apparatus (Kiernan & Barr, 2009: Garrett, 2011). The ear and the hearing system are always accompanied by different malfunction. In ...

Human perception of sounds is not only performed by an ear as a part of the body. In fact, a person hears through the organ of hearing, which has got complex structure. The ear is only a visible part of it. Auricle or pinna essentially acts as a funnel through which a person catches vibrations in the air. Coming through the auditory canal, they affect the eardrum – a thin membrane that separates the outer and middle ears. Then the eardrum vibrations are transmitted to the auditory ossicles and reach the inner ear, the main part of which is an organ called the bony ...

Sensory Perception

The Nervous system plays an important role in many mammals including man. The nervous system is responsible for the coordination of different stimuli in the body. Environmental changes can be felt in the body due to the nervous system present. The sense of touch, vision, audition and taste can be understood solely due to the nervous system. A minute change or deficiency in these senses could lead to fatality. A failure in perception of any of the senses makes an individual dependent. Sensory perception is essential for all living organisms and forms the basis for homeostasis. A ...

Hearing is one of the most vital senses we have, and exclusive of it, life can never be the same. Individuals who are unable to hear will always have a problem to communicate effectively with the people around them. Conductive hearing loss is the most common hearing problem in children. This type of hearing problem begins in childhood, even though it can show up at any age. The hearing problem occurs when the sound transmission through the middle ear is blocked (Haberman, 2004). Therefore, sound cannot be efficiently passed through the outer ear to the middle ear. A child with ...

REPORT FORMName: _________________________________ Condition:Histology

The inner ear consists of a membranous “labyrinth” encased in an occeous labyrinth. The vestibule and semicircular canal are concerned with vestibular function (balance); cochlea is concerned with hearing. The cochlea is a coiled tube. The cochlea coils up from its base. It is coiled around the modiolus. The Reissner’s membrane and the basilar membrane divide the cochlea longitudinally into three scalae. If you cut the cochlear tube cross sectionally, you’d see Scala vestibuli on top, scala tympani on the bottom. Scala media is a triangular duct in the middle. The side of the duct where the nerve fibres exit ...

LANGUAGE DEVELOPMENT HYPOTHESES

Multiple Choice Test. Chapter 1 - It is the sending and receiving of information, ideas, feelings, or messages. (page 3) - Language - Communication (answer) - Speech - Voice - Dialogue - What do you call an area on the roof of the mouth just behind the upper teeth that produces the s sound? (page 5) - Pragmatics - vocal-auditory channel - tongue - alveolar ridge (answer) - larynx - This the first design-feature made by Hockett, That is, human beings communicate by forcing air ...

Is noise pollution becoming a serious threat to the welfare of human beings?

Noise pollution is a form of environmental pollution caused by excessive/unpleasant noise which can disrupt the human/animal life activities. Noise pollution interferes with human activities at three level; biological level whereby it interferes with the biological functioning of the body, behavioral level which affects the sociological behaviors of human beings and lastly, the audio logical level which is the satisfactory performance of an individuals hearing mechanism It affects psychology, physiology and the performance of an individual. Noise pollution has become a serious threat to the welfare of human beings. The effects of noise pollution are diverse and numerous as it ...

2. Three strategies that can be used for teaching special needs children how to play include modeling, prompting, and modification of the physical environment. When using the modeling technique with children it is important to not use too many cues at once. Cues can be visual, verbal, or tactile in nature. By demonstrating to the child one or more times, for example, how to change the clothes on the doll, the child can watch the instruction being done, follow the cues, and mimic the result. It is important to give the child ample time and opportunity to practice ...

Sound is the sensation that is produced when the longitudinal vibrations of molecules from the external environment hit the tympanic membrane. Such vibrations in the external environment are called sound waves. Sound waves are produced when vibrating molecules generate changes in pressure. The speed of sound waves in air is approximately 344m/s at 20 degrees at sea level. An increase in temperature and altitude increases the speed of sound. Other media conduct sound at different speeds. For instance, in fresh water, sound travels at a speed of 1450m/s. Sound can be referred in a perceptual response and a physical stimulus. Sound reaches ...

What happens with a patient who develops a cataract?

A cataract is the opacification of the crystalline lens in the eye. In a patient with cataract, there is progressive loss in the transparency of the crystalline lens; this is due to changes in the density of the epithelial cells. There is also a derangement in the fiber of the lens cells. Lens transparency can also be because of deposition of minute epithelial masses of apoptotic lens tissue in the substance of the lens leading to disruption of the internal homeostatic mechanism of the lens and accelerating the process of cataract formation. (Vincente Ocampo, 2012)

Cataract initially leads to an increase ...